cp's OEIS Frontend

A055162 The number n has digits in ascending order and n=a-b where a has the digits of n in descending order and b has the digits of n in another order (a and b perhaps with extra zeros), ordered by a.

%I A055162 #16 Aug 18 2025 00:09:59
%S A055162 459,1467,445599,134667,13346667,1245789,123456789,444555999,
%T A055162 1333466667,123456789,12457899,12334566789,133334666667,12334566789,
%U A055162 1234567899,124578999,444455559999,1233345666789
%N A055162 The number n has digits in ascending order and n=a-b where a has the digits of n in descending order and b has the digits of n in another order (a and b perhaps with extra zeros), ordered by a.
%C A055162 Each term of this sequence A055162(n) corresponds to A099009(n+1), with its digits being reordered in the ascending manner. - _Alexander R. Povolotsky_, Apr 26 2012
%C A055162 All terms of this sequence are divisible by nine, yielding 51, 163, 49511, 14963, 1482963,.... - _Alexander R. Povolotsky_, Apr 29 2012
%D A055162 Denis Borris, Ken Duisenberg's Puzzle of the Week, April 20, 2000
%H A055162 <a href="http://www.ecst.csuchico.edu/~kend/potw/archive/000420sol.html">Source</a>
%F A055162 a(n) = A055161(n) - A055160(n).
%e A055162 459 = 954 - 495.
%Y A055162 Cf. A055159, A099009.
%K A055162 base,nonn
%O A055162 1,1
%A A055162 _Henry Bottomley_, Apr 27 2000